Step 1

Preheat oven to 350 degrees. Line a 12-cup muffin pan with foil baking cups, or spray it with nonstick spray.

Step 2

In a large bowl, combine cake mix with pumpkin until completely smooth and uniform. (Batter will be thick.)

Step 3

Evenly distribute batter among the cups of the muffin pan.

Step 4

Bake until a toothpick inserted into the center of a muffin comes out mostly clean, about 20 minutes.

Step 5

Let cool completely, about 10 minutes in the pan and 25 minutes out of the pan.

Step 6

Sprinkle with powdered sugar.